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  1. #include<stdio.h>
  2. #define EPS 0.001
  3. #define MAX 100
  4.  
  5. int main(void)
  6. {
  7. //freopen("alfa139_5.out", "w", stdout);
  8. int i, j, k, cnt=0;
  9.  
  10. for(i=1; i<MAX; i++)
  11. for(j=1; j<MAX; j++)
  12. for(k=1; k<MAX; k++)
  13. if(1.0/i+1.0/j+1.0/k < 0.75+EPS && 1.0/i+1.0/j+1.0/k > 0.75-EPS)
  14. printf("%d --> [%d %d %d]\n", ++cnt, i, j, k);
  15.  
  16. return 0;
  17. }
  18. //----------------------------------
Success #stdin #stdout 0.01s 2248KB
stdin
Standard input is empty
stdout
1 --> [2 5 20]
2 --> [2 6 12]
3 --> [2 8 8]
4 --> [2 12 6]
5 --> [2 20 5]
6 --> [3 3 12]
7 --> [3 4 6]
8 --> [3 6 4]
9 --> [3 12 3]
10 --> [4 3 6]
11 --> [4 4 4]
12 --> [4 6 3]
13 --> [5 2 20]
14 --> [5 20 2]
15 --> [6 2 12]
16 --> [6 3 4]
17 --> [6 4 3]
18 --> [6 12 2]
19 --> [8 2 8]
20 --> [8 8 2]
21 --> [12 2 6]
22 --> [12 3 3]
23 --> [12 6 2]
24 --> [20 2 5]
25 --> [20 5 2]